SDL/Window: removed pixel format member and promoted renderer info wh…

…olly to class member

The pixel format member was really rather useless, since SDL_RenderInfo returns an array of supported
formats and only the first one was being saved.

src/sdl/window.cpp

@@ -18,8 +18,6 @@
 #include "sdl/surface.hpp"
 #include "sdl/exception.hpp"
 
-#include <SDL_render.h>
-
 namespace sdl
 {
 
@@ -31,7 +29,7 @@ window::window(const std::string& title,
 				 const Uint32 window_flags,
 				 const Uint32 render_flags)
 	: window_(SDL_CreateWindow(title.c_str(), x, y, w, h, window_flags))
-	, pixel_format_(SDL_PIXELFORMAT_UNKNOWN)
+	, info_()
 {
 	if(!window_) {
 		throw exception("Failed to create a SDL_Window object.", true);
@@ -42,13 +40,12 @@ window::window(const std::string& title,
 		throw exception("Failed to create a SDL_Renderer object.", true);
 	}
 
-	SDL_RendererInfo info;
-	if(SDL_GetRendererInfo(*this, &info) != 0) {
+	if(SDL_GetRendererInfo(*this, &info_) != 0) {
 		throw exception("Failed to retrieve the information of the renderer.",
 						 true);
 	}
 
-	if(info.num_texture_formats == 0) {
+	if(info_.num_texture_formats == 0) {
 		throw exception("The renderer has no texture information available.\n",
 						 false);
 	}
@@ -59,8 +56,6 @@ window::window(const std::string& title,
 	// Use linear scaling when rendering, if applicable.
 	SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "linear");
 
-	pixel_format_ = info.texture_formats[0];
-
 	fill(0,0,0);
 
 	render();

src/sdl/window.hpp

@@ -19,6 +19,7 @@
  * Contains a wrapper class for the @ref SDL_Window class.
  */
 
+#include <SDL_render.h>
 #include <SDL_video.h>
 
 #include <string>
@@ -157,6 +158,12 @@ class window
 
 	int get_display_index();
 
+	/** Gets the renderer info for this window. */
+	const SDL_RendererInfo& get_renderer_info() const
+	{
+		return info_;
+	}
+
 	/***** ***** ***** Conversion operators. ***** ***** *****/
 
 	/**
@@ -175,8 +182,8 @@ class window
 	/** The @ref SDL_Window we own. */
 	SDL_Window* window_;
 
-	/** The preferred pixel format for the renderer. */
-	Uint32 pixel_format_;
+	/** Info about the current renderer. */
+	SDL_RendererInfo info_;
 };
 
 } // namespace sdl